AI Principles

The science behind AI — transformer architectures, training dynamics, and evaluation methodology. MONA explains how AI actually works, with precision over hype.

Geometric grid of colored cells representing a confusion matrix decomposing into precision and recall pathways
MONA explainer 10 min

From True Positives to Macro Averaging: The Building Blocks Behind Precision, Recall, and F1

Precision, recall, and F1 score measure what accuracy hides. Learn how true positives, confusion matrices, and macro …

Geometric visualization of benchmark scores converging and diverging across evaluation dimensions
MONA explainer 11 min

What Is Model Evaluation and How Benchmarks, Metrics, and Human Judgment Measure LLM Quality

Model evaluation combines benchmarks, automated metrics, and human judgment to measure LLM quality. Learn why high …

Four divergent scoring dimensions representing probability, text overlap, recall, and preference intersecting around a
MONA explainer 10 min

Perplexity, BLEU, ROUGE, and ELO: The Core Metrics Behind LLM Evaluation Explained

Perplexity, BLEU, ROUGE, and Elo measure fundamentally different properties of language models. Learn when each metric …

Abstract visualization of benchmark scores fracturing as contamination patterns distort evaluation metrics
MONA explainer 10 min

Benchmark Contamination, Metric Gaming, and the Hard Limits of LLM Evaluation

Benchmark contamination inflates LLM scores while real-world performance lags. Learn why metric gaming and saturated …

Balanced probability distributions splitting across protected groups with a fairness threshold line
MONA explainer 10 min

What Are Bias and Fairness Metrics and How They Detect Discrimination in ML Predictions

Fairness metrics test whether ML models discriminate by group. Learn how disparate impact, equalized odds, and the …

Mathematical proof notation with competing fairness metric equations pulling a balance point in three irreconcilable
MONA explainer 10 min

The Impossibility Theorem and Why No Model Can Satisfy Every Fairness Metric at Once

When group base rates differ, no algorithm satisfies calibration, equal error rates, and demographic parity at once. …

Toxicity classifier decision boundaries separating harmful from safe regions in AI output evaluation space
MONA explainer 10 min

What Is Toxicity and Safety Evaluation and How Guard Models Score Harmful AI Outputs

Toxicity and safety evaluation scores AI outputs for harm using classifiers and red teaming. Learn how guard models …

Overlapping safety benchmark taxonomies visualized as intersecting geometric planes with color-coded hazard categories
MONA explainer 10 min

HarmBench, ToxiGen, and MLCommons Taxonomy: The Datasets and Standards Behind AI Safety Testing

HarmBench, ToxiGen, and MLCommons AILuminate define how AI safety is measured. Learn the datasets, classifiers, and …

Three intersecting geometric boundaries representing competing fairness constraints across a population distribution
MONA explainer 10 min

Demographic Parity vs. Equalized Odds vs. Calibration: Core Fairness Metrics Compared

Demographic parity, equalized odds, and calibration define fairness differently and cannot all be satisfied at once. …

Diverging toxicity confidence scores revealing systematic classifier bias patterns across different language dialects
MONA explainer 10 min

False Positives in Toxicity Detection: Dialect Bias, Bypasses

Toxicity classifiers over-flag minority dialects and miss adversarial attacks. Explore the statistical bias—from dialect …

Particles forming adversarial attack vectors converging on an AI model decision boundary
MONA explainer 10 min

Red Teaming for AI: Adversarial Testing Exposes Failures

Red teaming uses adversarial testing to reveal AI vulnerabilities. Discover what it catches, mechanics, and why it …

Geometric diagram of interconnected security framework layers mapping AI system vulnerabilities
MONA explainer 11 min

OWASP LLM Top 10, MITRE ATLAS, and the Frameworks That Structure AI Red Teaming

OWASP LLM Top 10 and MITRE ATLAS give red teams structured attack categories. Learn how these frameworks turn AI …

Mathematical proof that language model hallucination cannot be eliminated, showing fundamental limits of autoregressive
MONA explainer 9 min

Why Zero-Hallucination LLMs Remain Impossible: Autoregressive Limits and Benchmark Ceilings in 2026

LLM hallucination is mathematically inevitable. Explore the autoregressive limits, benchmark ceilings, and why …

Probability distribution branching into confident but factually diverging output paths from a language model
MONA explainer 9 min

What Is AI Hallucination and How Statistical Next-Token Prediction Creates Confident Falsehoods

AI hallucinations aren't bugs — they emerge from how next-token prediction works. Learn why LLMs produce confident …

Branching classification tree with split pathways representing hallucination taxonomy categories
MONA explainer 10 min

Intrinsic vs. Extrinsic, Closed vs. Open Domain: The Taxonomy and Prerequisites of LLM Hallucination

LLM hallucination isn't one problem — it's four. Learn the intrinsic vs. extrinsic taxonomy, the domain split, and the …

GPU scheduling pipeline visualization showing requests entering and leaving batch slots at each forward-pass iteration
MONA explainer 10 min

What Is Continuous Batching and How Iteration-Level Scheduling Maximizes GPU Throughput

Continuous batching replaces request-level scheduling with iteration-level scheduling, keeping GPUs busy on every …

Token sequences flowing through GPU memory blocks with active slots recycling while idle slots wait for reallocation
MONA explainer 11 min

From Static Batching to PagedAttention: Prerequisites and Hard Limits of Continuous Batching

Continuous batching swaps finished LLM requests every decode step. Learn how PagedAttention cuts KV cache waste to under …

Weight matrix grid transitioning from high to low precision with format labels and accuracy indicators
MONA explainer 11 min

GPTQ vs AWQ vs GGUF vs bitsandbytes: Quantization Formats and Their Tradeoffs Explained

GPTQ, AWQ, GGUF, and bitsandbytes each shrink LLM weights differently. Compare speed, accuracy, and hardware reach to …

Precision grid transitioning from smooth high-bit gradients to fragmented low-bit patterns with visible accuracy gaps
MONA explainer 10 min

Accuracy Collapse, Task-Specific Degradation, and the Hard Limits of Sub-4-Bit Quantization

Sub-4-bit quantization promises smaller LLMs, but accuracy collapses unevenly across tasks and languages. Learn where …

Probability curves shifting between sharp peaks and flat noise as a temperature dial moves between repetition and
MONA explainer 12 min

Repetition Loops, Hallucination Spikes, and the Hard Limits of Sampling Parameter Tuning

Wrong sampling parameters trap LLMs in repetition loops or hallucination. Trace the probability math behind both failure …

Abstract visualization of tokens flowing sequentially through a neural network during autoregressive decoding
MONA explainer 11 min

What Is Model Inference and How LLMs Generate Text Through Autoregressive Decoding

Model inference generates LLM text one token at a time via autoregressive decoding. Learn why this sequential bottleneck …

Abstract visualization of memory blocks fragmenting across GPU architecture with quadratic growth curves overlaid
MONA explainer 10 min

Memory Walls, Quadratic Context Costs, and the Hard Engineering Limits of LLM Inference in 2026

LLM inference hits hard physical walls — memory, quadratic attention, bandwidth. Learn the engineering limits and 2026 …

Abstract visualization of memory blocks flowing through a transformer attention layer during token generation
MONA explainer 11 min

KV-Cache, PagedAttention, and the Building Blocks Every LLM Inference Pipeline Needs

KV-cache, PagedAttention, and continuous batching form the inference pipeline core. Learn how memory management …

Diverging optimization curves where proxy reward climbs while gold reward collapses past a critical threshold
MONA explainer 10 min

From Loss Functions to Reward Hacking: Prerequisites and Technical Limits of Reward Models

Reward models compress human preference into a scalar signal. Learn the Bradley-Terry math, the RLHF pipeline, and why …

Probability distribution curves shifting shape as a temperature dial turns from cold precision to warm randomness
MONA explainer 10 min

What Is Temperature in LLMs and How Softmax Scaling Controls Text Generation Randomness

Temperature divides logits before softmax, reshaping the token probability distribution. Learn how this parameter, …

Geometric visualization of pairwise preference comparisons converging into a scalar reward signal for LLM alignment
MONA explainer 11 min

What Is Reward Model Architecture and How Bradley-Terry Scoring Shapes LLM Alignment

Reward models turn human preferences into scores that guide LLM alignment. Learn how Bradley-Terry scoring and pairwise …

MONA examining neural network weights being compressed from wide floating-point blocks into compact integer representations
MONA explainer 10 min

What Is Quantization and How FP32-to-INT4 Compression Makes LLMs Run on Consumer Hardware

Quantization compresses LLM weights from FP32 to INT4, cutting memory up to 8x. Learn how GPTQ, AWQ, and calibration …

Probability distributions carved into different geometric shapes by four sampling filters applied in sequence
MONA explainer 10 min

Top-K, Top-P, Min-P, and Beam Search: Every LLM Sampling Method Compared

Compare top-k, top-p, min-p, and beam search LLM sampling methods. Learn how each reshapes probability distributions and …

Overlapping automated and human search beams with a dark gap between them representing red teaming coverage limits
MONA explainer 10 min

Automated Red Teaming Misses What Humans Catch: Coverage Gaps

Automated red teaming outperforms human testing but misses critical failures. Coverage gaps explain why automated …

Power-law curves on logarithmic axes showing predictable scaling patterns across neural network model sizes
MONA explainer 10 min

What Are Scaling Laws and How Power-Law Curves Predict LLM Performance

Scaling laws predict LLM performance from model size, data, and compute via power-law curves. Learn the math behind …